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Objectives: Many studies have examined the prognostic significance of the neutrophil-to-lymphocyte ratio (NLR) in oral cancer; however, the results are contradictory. We, therefore, conducted a meta-analysis aiming to clarify the prognostic value of the NLR in oral cancer patients. Methods: A literature search was conducted in the PubMed, Web of Science, and Embase databases. Stata version 12.0 was used for statistical analysis. Results: A total of 14 studies with 3216 patients were finally included. The results indicated that a high NLR was significantly associated with worse DFS (n=10, HR = 1.73, 95% confidence interval CI = 1.44-2.07, Pn=9, HR = 1.61, 95% CI = 1.39-1.86, Pn=7, odds ratio OR = 1.62, 95% CI = 1.32-1.98, Pn=7, OR = 2.63, 95% CI = 2.12-3.25, Pn=6, OR = 3.22, 95% CI = 2.59-4.01, Pn=5, OR = 1.48, 95% CI = 1.03-2.11, P=0.033), and perineural invasion (n=4, OR = 1.83, 95% CI = 1.4-2.39, PConclusion: This meta-analysis showed that the NLR might be a potential independent prognostic factor in patients with oral cancer.
Yang et al. (Fri,) studied this question.